95 lines
3.2 KiB
Markdown
95 lines
3.2 KiB
Markdown
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RabbitMQ `3.11.20` is a maintenance release in the `3.11.x` [release series](https://www.rabbitmq.com/versions.html).
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Please refer to the upgrade section from [v3.11.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.11.0)
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if upgrading from a version prior to 3.11.0.
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This release requires Erlang 25 and supports Erlang versions up to `25.3.x`.
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[RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on
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Erlang version requirements for RabbitMQ.
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### Minimum Supported Erlang Version
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As of 3.11.0, RabbitMQ requires Erlang 25. Nodes **will fail to start** on older Erlang releases.
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Erlang 25 as our new baseline means much improved performance on ARM64 architectures, [profiling with flame graphs](https://blog.rabbitmq.com/posts/2022/05/flame-graphs/)
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across all architectures, and the most recent TLS 1.3 implementation available to all RabbitMQ 3.11 users.
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## Changes Worth Mentioning
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Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.11.x/release-notes).
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### Core Server
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#### Bug Fixes
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* Fixed a potential resource leak in at-least-once dead lettering from quorum queues.
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GitHub issue: [#8799](https://github.com/rabbitmq/rabbitmq-server/pull/8799)
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### CLI Tools
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#### Enhancements
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* A new command, `rabbitmqctl deactivate_free_disk_space_monitoring`, can be used to (temporarily or permanently) disable
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free disk space monitoring on a node.
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To re-activate it, use `rabbitmqctl activate_free_disk_space_monitoring`.
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GitHub issue: [#8801](https://github.com/rabbitmq/rabbitmq-server/pull/8801)
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### AMQP 1.0 Plugin
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#### Bug Fixes
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* AMQP 1.0 clients that try to publish in a way that results in the message not being routed
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anywhere are now notified with a more sensible settlement status.
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GitHub issue: [#7823](https://github.com/rabbitmq/rabbitmq-server/issues/7823)
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### Prometheus Plugin
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#### Enhancements
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* Prometheus scraping API endpoints now support optional authentication.
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Contributed by @SimonUnge (AWS).
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GitHub issue: [#8683](https://github.com/rabbitmq/rabbitmq-server/pull/8683)
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* The plugin now filters out values that are `undefined` or `NaN`, simply excluding
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them from the API endpoint response.
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Previously, if a metric was not computed for any reason (e.g. free disk space monitor
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was disabled on the node), its value could end up being rendered as `undefined` or `NaN`,
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two values that Prometheus scrapers cannot handle (for numerical types such as gauges).
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GitHub issue: [#8660](https://github.com/rabbitmq/rabbitmq-server/issues/8660)
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### Management Plugin
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#### Bug Fixes
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* It was not possible to close a table column selection pane on
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screens that had little vertical space.
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Contributed by @Antsthebul.
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GitHub issue: [#8701](https://github.com/rabbitmq/rabbitmq-server/pull/8701)
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## Dependency Upgrades
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* `ra` was upgraded to [`2.6.3`](https://github.com/rabbitmq/ra/releases)
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## Source Code Archives
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To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.11.20.tar.xz`
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instead of the source tarball produced by GitHub.
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